The problem is that there is too much of this general exposure and specialization happens way too late once the brain is not as good at learning anymore. People peak in competitive fields when they are in early 20s or even before that. In our education system we are not even allowed to do the job before we are like 25 or later. There is only so much you can learn sitting in a chair listening to a professor. It's a completely backwards system that limits potential of about anyone with average+ intelligence.